Under which circumstance is antibiotic prophylaxis recommended for PCI?

• A. Routine antibiotic prophylaxis for all PCI
• B. Antibiotic prophylaxis is not necessary in any PCI
• C. Prophylaxis is recommended only if infection risk such as prosthetic valves
• D. Prophylaxis is recommended for prosthetic valves or infection risk

Answer: (D)

Antibiotic prophylaxis around PCI is not given to every patient; it’s reserved for those at high risk for infective endocarditis if bacteria enter the bloodstream during the procedure. The best approach is to use prophylaxis when there is an infection risk tied to cardiac conditions, such as having a prosthetic heart valve or a history that makes endocarditis more likely. That’s why prophylaxis for prosthetic valves or other infection risk scenarios is recommended—the question’s correct choice captures both of these high-risk situations. Routine prophylaxis for all PCI procedures isn’t indicated, and saying it’s never necessary would miss the subset of patients who need it.